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Immunoglobulin G Subclasses Panel
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
IGGSPA
Alias/See Also
7903;
IgG Subclasses
IgG Subclasses
CPT Codes
82787(4), 82784
Includes
IgG Subclass 1(5425), IgG Subclass 2(5426), IgG Subclass 3(5427), IgG Subclass 4(5428)and Total IgG
Preferred Specimen
2 mL Serum
Minimum Volume
1.5 mL serum
Instructions
SST or Red top: Avoid hemolysis. Invert a minimum of 5 times, then allow to clot in an upright position for 30 minutes. Centrifuge the the tube for at least 10 minutes. Keep tightly stoppered.
Transport Container
SST (speckled top tube) or Red top
Transport Temperature
Room Temperature
Specimen Stability
Room Temperature = 24 hours
Refrigerated = 7 days
Frozen = at least 7 days
Refrigerated = 7 days
Frozen = at least 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis and Lipemia
Methodology
Nephelometry
Setup Schedule
Monday and Thursday
Report Available
3 days
Clinical Significance
Increased IgG is associated with acute and chronic inflammations, monoclonal IgG myeloma, autoimmune diseases; decreased IgG is found in selective IgG deficiency, Bruton's Disease, and acquired immune deficiency.
Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439
Last Updated: November 22, 2021
